Survivability of MOV Arresters Subjected to Ferroresonance Overvoltages

Determine the capability of metal-oxide surge arresters to survive exposure to ferroresonant overvoltage caused by the interaction of three-phase grounded-wye padmount transformers and URD cable capacitance. Create guidelines indicating the maximum cable length which can be switched with a transformer, in terms of the arrester type, arrester voltage rating, and system voltage class.

Tagged: P1b-4, P4, Equipment Testing/Evaluation, Engineering Guidelines